21213208576

Names of 21213208576

• Cardinal: 21213208576 can be written as Twenty-one billion, two hundred thirteen million, two hundred eight thousand, five hundred seventy-six.

Scientific notation

• Scientific notation: 2.1213208576 × 10¹⁰

Factors of 21213208576

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1281

Divisors of 21213208576

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 43 49 56 64 86 98 112 128 172 196 224 256 301 344 392 448 512 602 688 784 896 1024 1204 1229 1376 1568 1792 2048 2107 2408 2458 2752 3136 3584 4096 4214 4816 4916 5504 6272 7168 8192 8428 8603 9632 9832 11008 12544 14336 16856 17206 19264 19664 22016 25088 28672 33712 34412 38528 39328 44032 50176 52847 57344 60221 67424 68824 77056 78656 88064 100352 105694 120442 134848 137648 154112 157312 176128 200704 211388 240884 269696 275296 308224 314624 352256 369929 401408 422776 481768 539392 550592 616448 629248 739858 845552 963536 1078784 1101184 1232896 1258496 1479716 1691104 1927072 2157568 2202368 2465792 2516992 2589503 2959432 3382208 3854144 4315136 4404736 5033984 5179006 5918864 6764416 7708288 8630272 8809472 10067968 10358012 11837728 13528832 15416576 17260544 17618944 20716024 23675456 27057664 30833152 35237888 41432048 47350912 54115328 61666304 70475776 82864096 94701824 108230656 123332608 165728192 189403648 216461312 246665216 331456384 378807296 432922624 493330432 662912768 757614592 1325825536 1515229184 2651651072 3030458368 5303302144 10606604288 21213208576
• Sum of all divisors σ(n): 50538933720
• Sum of proper divisors (its aliquot sum) s(n): 29325725144
• 21213208576 is an abundant number, because the sum of its proper divisors (29325725144) is greater than itself. Its abundance is 8112516568

Bases of 21213208576

• Binary: 10011110000011001111110000000000000₂
• Hexadecimal: 0x4F067E000
• Base-36: 9QTSOHS

Squares and roots of 21213208576

• 21213208576 squared (21213208576²) is 450000218088879947776
• 21213208576 cubed (21213208576³) is 9545948485564898438396275326976
• The square root of 21213208576 is 145647.5491589199
• The cube root of 21213208576 is 2768.2296801183

Scales and comparisons

• 21,213,208,576 seconds is equal to 674 years, 26 weeks, 5 days, 5 hours, 56 minutes, 16 seconds.
• To count from 1 to 21,213,208,576 would take you about one thousand, three hundred forty-nine years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21213208576 cubic inches would be around 230.7 feet tall.

Recreational maths with 21213208576

• 21213208576 backwards is 67580231212
• The number of decimal digits it has is: 11
• The sum of 21213208576's digits is 37
• More coming soon!